Mechanism for making cube-sugar



O. B. STILLMAN. Mechanism for Making Cube Sugar.

No. 230,675. Patented Aug. 3,1880.

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NJETERS. PNOTO-UTHOGRAFHER, WASMNGTON D G UNITED STATES.

I PATENT OFFICE.

OSCAR STILLMAN, OF BROOKLINE, MASSACHUSETTS.

MECHANISM FOR MAKING CUBE-SUGAR.

SPECIFICATION forming part of Letters Patent No. 230,675, dated August3, 1880.

' Application filed February 2, 1880.

To all whom it may concern:

Be it known that I, OSCAR B. S-TILLMAN,

the following description, in connection with the accompanying drawings,is a specification.

My invention relates to machinery for making cube-sugar; and it isintended as an improvement on that class of machines described in UnitedStates Letters Patent Nos. 208,521 and 208,522, dated October 1, 1878,in.which a slab of sugar is formed on a plate and then moved under thecutting and pressing mechanism, by which it is formed into cubes andremoved upon the said plates, which form the upper surface of thebed-plate upon which the sugar is pressed. I

In the said patents the plates were described as moved forwardautomatically from the point at which the sugar is spread upon them toform a slab to the point at which it is pressed into cubes, but themechanism for moving the plates was not shown. In practice, however, theplates were provided with lugs on their under side, to be engaged by thefeeding mechanism to feed them forward in succession to the desiredposition.

My invention consists in a novel construclion of the plates and theirmoving or feeding mechanism, whereby either side of the plate may beused to receive the sugar. Plates for this purpose, when subjected topressure always on one side, soon become curved and unfit for furtheruse until straightened by an operation of considerable expense; but withplates adapted to be used with either side subjected to pressure thisstraightening operation may be dispensed with by proper care inreversing the plate from time to time.

The plate-feeding mechanism is herein shown as consisting of endlesschains kept in motion by suitable pulleys and provided with lugs atproper distances apart, to engage notches in the plates and move themforward, the said plates being alike on both sides, whereby they may bereversed before becoming bent by the pressure of the sugar-pressingmechanism.

the drawings, as it may be of any usual kind,

and forms no part of my invention.

The frame a supports the pressing mechanism b, which maybe as in thepatents referred The sugar-holding plates 0 are notched, as at d, to beengaged by lugs c, on an endless chain, f, carried by the pulleys g, andguided in suitable guideways m, which also answer to guide and supportthe plates 0.

When under the pressing mechanism the plates 0 are properly supported011 the bedplate a, suitably supported in the frame-work a.

As shown in Fig. 5, the notches are placed at the corners of the plate;but in the other figures they are shown at the middle of the edges ofplates, and the lugs e are placed at suitable intervals on the chain fto bring the edges of the plates close to, one another, to form acontinuous surface, as shown in Fig. 1, and it will be observed thatwith this construction both sides of the plate may be finished alike andfree from projections, so that either side may be placed uppermost toreceive the sugar.

I claim- In a machine for making cube-sugar, an endless chain providedat intervals with lugs, combined with sugar-holding plates provided withnotches, as described, to be engaged by the said lugs, and made withboth faces alike, to enable it to be used with either face uppermost toreceive the sugar to be pressed, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

OSCAR B. STILLMAN.

'Witnesses:

G. W. GREGORY, N. E. O. WHITNEY.

